Patrick, I performed some A/B comparison measurements several years ago when this was still working its way through CISPR to aid in the determination of the US vote. I found that some emissions go down (some by a bunch) and others may go up when you add the clamps. You will need to re-test products for Europe as you can't predict what the change will by just by inspection.
BTW, this amendment to CISPR 22 passed by 1 vote. The US voted no as the clamps were not adequately defined in the proposal. Ghery Pettit Intel -----Original Message----- From: Conway, Patrick R [mailto:[email protected]] Sent: Monday, November 18, 2002 2:53 PM To: '[email protected]' Subject: All- I'd like to know if there are any opinions about... It is my understanding the CISPR 22 A1:2000 will require the use of "ferrite clamps" during RE tests of table-top equipment. Has anyone started using these devices during their testing? Has anyone seen a difference in their test results with the use of these devices? Best Regards, Patrick Conway NCE StorageTek EMC Advisory Engineer 303.661.6391 303.661.6717 (FAX) ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list" ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
